The breaks on an elevator of weight 50,000 N act upward with a force of 100,000 N. The acceleration of the elevator while breaking would be?

Q: The average speed of horse that gallops  a distance of 10KM in a time of 30 minuntes is?

A: The average speed is the ratio of the total distance travelled to the time taken for motion. It is…

Q: If you push a crate with the force of 100N and it slides at constant velocity, how much is the…

A: When a force applied on a cart then the motion of the cart will be opposed by the friction force.…

Q: Carlos is pulling a 40 kilogram cart with a horizontal force of 100 newtons. The force of friction…

A: Consider F be the horizontal force and f  be the frictional force. Draw the free-body diagram of the…

Q: A 4 kg block requires 6 m to slide to a stop.If the force of friction was 22 N, what was the initial…

A:

Q: A car has a momentum of 12 000 kg ·m/s, and its mass is 1.5 t (ton). What is its speed?

A:

Q: what is the potentil engery for a 0.5 kg ball lifted 2 m above the ground?

A: Given, mass m = 0.5 kg height h = 2 m We know the expression for potential energy is  P.E=mgh

Q: A woman pushes a 50-N lawnmower with a force of 25 N. If the handle of the lawnmower is 45 above the…

A:

Q: the weight in newtons of 300 g of grapes on the earth is?

A:

Q: What is the acceleration of your 9.6 kg shopping cart if there is a forward push of 85.1 N and…

A:

Q: If you push on a crate with a force of 100 N and it slides at constant velocity, how much is the…

A: Given:Pushing force, F = 100 NSince, the crate is moving with constant velocity. Therefore,…

Q: The vector sum of two forces 13 N and 8 N is 5 N. The angle between the two forces is ?

A:

Q: : What the acceleration a vehicle having 1000 kg of mass will get after applying a force of 5000N?

A: Data provided :  Mass of vehicle (m) = 1000 kg Force applied (F) = 5000 N

Q: A force of 1000N is applied to a 1200Kg car. If the coefficient of rolling friction is 0.04, what is…

A: Here,

Q: What is the acceleration of a 50 kg object pushed with a force of 500 N?

A: mass = 50kg  Force = 500 N To find = acceleration

Q: If the mass of the object in the figure is 5kg, what is its acceleration?

A: The net force(F) acting on the object is:- F=F3-F1-F2F=60-30-20F=10N (towards left)

Q: A cyclist is riding at 4m/s, and the drag force acting on them and their bike is 5N. If the cyclist…

A: initial speed of cyclist (v) = 4 msinitial drag force (F) = 5 N new speed of cyclist (v') = 8 msNew…

Q: A man weighs 220 pounds. His son weighs 50,000 grams. What is their weight difference in kilograms?

A: Given  Weight of man W1=220 pound Weight of son W2=50000gram

Q: How large a net force is required to accelerate a 1,703-kg SUV from rest to a speed of 12.9 m/s in a…

A: Net Force required....Fnet= 624.149 Newtons

Q: When Fatima rides her bicycle at 5 m/s, the drag force acting on her and her bicycle is 6 N. If she…

A:

Q: What is the acceleration of a box of mass 2kg that is pushed with a force of 10N?

A: Relation between force and acceleration is given by:- Force = mass × acceleration .Given:- Force =…

Q: A cup of coffee has a mass of 0.377 kg. If you place this cup of coffee on a desk and let is sit…

A: mass of cup of coffee = 0.377 kg acceleration due to gravity (g) = 9.8 m/s2   To find : force…

Q: A car has a mass of 2000 kg.  What is the acceleration produced by a force of 3000 N?

A:

Q: A book weighing 10 N is held at rest in the palm of the hand. The reaction to the force of the hand…

A: Given data The weight of the book is: W = 10 N   Newton's third law explains that for every action,…

Q: A ball has a mass of 2 kg and is thrown with a force of 8 Newtons for .35 seconds. What is the…

A: Given, the mass of ball m =2 kgforce on ball F =8 Nthrown for ∆t =0.35 secwe have to calculate the…

Q: A basketball with a mass of 0.60 kg is accelerated with a force of 10.8 N. If resisting forces are…

A: Given: The mass of the ball is 0.6 kg. The applied force is 10.8 N.

Q: The net force of a vehicle that is accelerating at a rate of 1.5 m/s? is 1,800 Newtons. What is the…

A:

Q: If lillian weighs 500N, what is her weight in pounds?

A: 1 Pound = 4.45 N Weight = mg

Q: What will be acceleration of a body of mass 7 kg if a force of 420N is applied to if ?

A: Given: The mass of the object is 7 kg. The applied force is 420 N.

Q: If a rock of mass 6kg is dropped from a height, and has a velocity of 5 m/s when it hits the ground,…

A: The kinetic energy of the rock just before it hits the ground will be KE=12mv2=126kg5m/s2=75J

Q: What is the acceleration of a 50 kg object pushed with a force 500 newtons?

A: Mass of the object m=50 kg The force applied on the object F=500 N If a is the acceleration ,…

Q: What is the net force on a cart that is pulled to the right with 100 pounds and to the left with 30…

A: GivenF1 = 100 pounds to the rightF2 = 70 pounds to the left

Q: What is the acceleration produced by a force of 108 newtons exerted on an object of mass 18 kg ?

A: Given data :               Force  =  F               Mass  =  m                   To find :…

Q: If you are travelling down the road at 10.0 m/s and hit the brakes to a stop in 3.0 meters, how far…

A:

Q: What will be the momentum of a stone having mass of 20 kg when it is thrown with a velocity of 8 m/s…

A: Given:mass is 20 kgVelocity is 8 m/sTo Find:Momentum

Q: If a 60 kg person on a 15 kg sled is pushed with a force of 300 N, what will be person's…

A:

Q: What is the acceleration of a 20 kg box if you push with a force of 100 N and there are 60 N of…

A:

Q: with what force will 1055 kg car that is accelerating at 2.44 m/s/s hit a tree?

A: The mass of the car is m = 1055 kg. The acceleration of the car is a = 2.44 m/s2.

Q: What is net force on a bag pulled down by gravity with 18 newtons and pulled upward by a rope with…

A: Given:Force due to gravity = 18 N (Downward)Force due to rope = 18 N (Upward)

Q: a 60kg person on  a 15kg sled is pushed with a force of 300N, what will the person's acceleration?

A:

Q: A person  is standing on a bathroom scale in a moving elevator and measures a force of 867N. If the…

A: Given data: Force measured, F=867 N Mass of the person, m=63.4 kg

Q: when a ramp is used to lift a body , the uphill force required to push a body up is?

A:

Q: What will be acceleration of a body of mass 5 kg if a force of 200N is applied to it ?

A: Given data:  Mass (m) = 5 kg Force (F) = 200 N Required: Acceleration (a)

Q: If a baseball (m=.450 kg) is thrown up with a velocity of 8 m/s, how many meters high will it reach?

A:

Q: The force of gravity on planet X is 167% of that found on Earth. If a person weighs 333N on Earth,…

A: The force of gravity on planet X F' is 167% of force of gravity on Earth F  . i.e.         F' =…

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.